import { bytesToSize } from 'educoder';
export function isImageExtension(fileName) {
    return fileName ? !!(fileName.match(/.(jpg|jpeg|png|gif)$/i)) : false
}

export function markdownToHTML(oldContent, selector) {
    window.$('#md_div').html('')
    // markdown to html
    var markdwonParser = window.editormd.markdownToHTML("md_div", {
        markdown: oldContent,
        emoji: true,
        htmlDecode: "style,script,iframe",  // you can filter tags decode
        taskList: true,
        tex: true,  // 默认不解析
        flowChart: true,  // 默认不解析
        sequenceDiagram: true // 默认不解析
    });
    const content = window.$('#md_div').html()
    if (selector) {
        window.$(selector).html(content)
    }
    return content
}

export function appendFileSizeToUploadFile(item) {
    return `${item.title}${uploadNameSizeSeperator}${item.filesize}`
}
export function appendFileSizeToUploadFileAll(fileList) {
    return fileList.map(item => {
        if (item.name.indexOf(uploadNameSizeSeperator) == -1) {
          return Object.assign({}, item, {name: `${item.name}${uploadNameSizeSeperator}${bytesToSize(item.size)}`})
        } 
        return item
    }) 
}
export const uploadNameSizeSeperator = '　　'